Downing's OUYA Portable: COMEPLETED! Last Post Update

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Downing
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Re: Downing's OUYA Portable

Post by Downing »

Alright! I've got some updates on the status of the controller end of things.

RDC has worked his magic once again, not only overcoming the seemingly "WTF were they thinking" architecture of the OUYA controller, but also shrinking it down to a single board size of .75" x 1.1", with digital triggers and easy solder test point pads. The first run has been sent to OSHPark and got sent to the Fab house yesterday, so they are expecting to have the boards back by the 14th which means I won't see them until probably the 21st, but it'll hopefully be sooner.

Here is a Render of the PCB. This houses everything critical to make the controller work with just the BlueTooth Module from the top controller board. Since I'm not implementing the use if the analog triggers, this board also uses 10K resistors to make the triggers a simple on/off function. For all the games I played on the OUYA (and any system for the matter), the need of incremental steps for a "pressure sensitive" function has just not been there. I'm also not using the OUYA touch pad either because...well why?
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But anyway, you really begin to appreciate the work that went into this when see how small this really is going to be.
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I probably should have mentioned though, that RDC did all of this without a working OUYA to use for testing. This I know caused him much frustration, especially not knowing how the controller worked to begin with, nor could he test any of his theories. The thing with a lot of modern controllers is that they also can't be fully functional until they are paired with the host system, which means he was sent down many wrong paths that started in the right direction but appeared to be dead ends when he got to a certain point. But he still got through it which is freaking amazing. :congrats: :party:

The trigger pot system on the OUYA is also screwed three ways from Sunday. It's a basic 10K pot style, but the orientation style is ass backwards. On pot is straight and the other is placed at a 90 degree angle. This changes the values in which the controller reads a press and can cause a great deal of confusion if messed with. This is why I opted out of analog triggers. Below, the pic shows the 10K pot test to see if the triggers would work as an digital on/off which they did.
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So now unfortunately we play the waiting game. The prints for the back half of the case are not going well from what I hear, so I may have to come up with something different but there's a nice two week window plus installation time of the controller module that progress can still be made on the back half of the case. Hoping this isn't causing any anxiety for my buddy Hail.

More updates soon!
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Hey guys, check out my new website and project showcase!
Also this is where my Case Making Guide can be found!
Downing
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Re: Downing's OUYA Portable

Post by Downing »

Sorry guys, been slacking on my updates over here. Here's one long post with all the updates I've made since the last one. Sorry if it's a bit jumbled.

Ok, well due to certain circumstances, I decided to forgo waiting for the back half of the casing to get finished. Hail's been having trouble with his printer and not having much time so I really don't wish to be any more of a burden on him. But I tell ya, I really wish I had a 3D printer of my own. Soon hopefully.

Anyway, with that said, I used the back half of the CP casing that I had stolen the front from, but in order to make it work I was going to have to roll up the sleeves and do some good old fashioned case modding! And I loved every second of it.

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The biggest challenge was this back half was designed for a cart slot. A cart slot that was no longer going to be used. The cart cover also needed to be played with a bit because that too was designed for a cart.

To make a long story short, I just made an "L" shaped bend, melted it in place and had a nice little recessed area where the USB and maybe a switch for an HDMI switch which if OUYA is correct and their controller can also pair with a PC, than I may be able to control my PC from this as well! Maybe. Dunno yet, but that would be a pretty sweet add-on.

Just a quick update of the progress of the evening.

Though it may not look it, this is after the first sanding which took the filler that helps hold the back cover in place, was sanded down. Then the entire thing was filled with a flex filler epoxy to fill in the gaps left by the 3D printing process.

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So tomorrow's project like today's will be sanding, sanding sanding. This takes quite a bit longer too because of all the tiny nooks and crannies that are on the back half of this casing. But I'm excited to see how this turns out with a few coats of primer tomorrow. More updates tomorrow night.

The first round of sanding is complete and though this pic doesn't show it, a coat of primer has been added. Still have quite a bit of work to do on it though as there are some pretty nasty imperfections on the edges and in the hard-to-reach areas on the top of the recessed panel. I think it's coming out pretty good though for being such a hack job from the start.

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So tonight I'll be doing some of the spot filling and hitting it with another coat of primer after I get that sanded down. Hopefully I'll be able then get this on the mill and cut out the vents in the back. After that's done, then I can paint it and I'm looking forward to using the new paint I picked out for the back color and see how well that matches!

*EDIT*

Just got an email that my PCBs for the controller board have been shipped, a full 3 days sooner than expected. So I should have them mid next week!

Alright, the back half of the casing is complete and clear coated. This didn't come out quite the way I thought it was going to for a couple reasons, but that doesn't mean it's a bad thing. First off, I didn't know exactly how textured "texture spray paint" really was. It was pretty much like like throwing a bunch of sand onto the casing after the first layer of paint had been sprayed on. But after a few clear coats, the grit smoothed out and it's actually quite comfortable to hold.

Second, it didn't darken up to what the cap showed, so it's a bit lighter than anticipated and causes a bit of a mis-match with the blue front. But nothing I can do about that now. Next time I'm going to stick with the metallic paint instead of the textured, but honestly it isn't that bad and you want to talk about a paint that covers up imperfections, look no further. I've never seen a better paint when it comes to that part.

You will notice on the bottom right, a slight gouge. This happened when I dropped the case and it fell on top of my vice. I was not very thrilled at that, but since the clear coat is already on there, I couldn't sand it down and repaint it. It sucks, but it is what it is. Oh well.
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Here's a pic of the USB in place which will allow for side loading or additional HD space if the internal 8 Gig proves to be too little.
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Last, a pic of the internals as it stands so far. The OUYA BOB that RDC designed should be to me on Monday, so once that arrives I can start to wire up the controller as well as the rest of the system. I could possibly have this done as early as next weekend, but I do have other obligations that have to be attended to.
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Hey guys, check out my new website and project showcase!
Also this is where my Case Making Guide can be found!
Downing
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Re: Downing's OUYA Portable

Post by Downing »

More "Batch" Updates

It appears my boards from OSH are in USPS limbo. They shipped from OR, had an arrival date of Monday and it still hasn't moved.
Grrrrr...more phone calls.

Well fear not. At least I got something cool in the mail today!

RDC sent me back the controller boards he was working on after he was done with them. Black masked controllers are a bitch to trace out, so what did he do? He took out the problem at the source! Pretty difficult to get a cleaner picture than that when trying to trace out a board.
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Now this is only one of two boards that the OUYA controller uses. But the other is really just a daughter board that just serves as a surface to mount the control sticks and trigger pots on. All the brains and functionality are located on this one. I just think it's really cool to see what happens "under the mask".
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My boards came in yesterday. This is just a pic of the front and back. I did solder up the components to it last night but didn't take a pic. I will before I start to wire up the controller to the system.

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Made a bit of progress tonight. Fixed a couple issue with my soldering job on the main chip and was able to get a placement the BOB and the 5v Regulator. This whole unit needs 3 different voltages to run correctly. 7.4v for the screen, 5V for the OUYA and 3V for the controller and LEDs. Fortunately this all flows down hill and one source can easily tap into the other.
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Kind of a mess right now but once I get all the wires run, it'll be a lot cleaner. I'm hoping that if I can put a full day into this tomorrow, I should have a system ready for testing, but I'm not going to promise anything. Looking forward to this though. I have to say this is the most exciting "portable" I've built so far and can't wait to play it!
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Hey guys, check out my new website and project showcase!
Also this is where my Case Making Guide can be found!
Downing
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Re: Downing's OUYA Portable

Post by Downing »

Been a little while since my last update. Been a couple busy weeks at work and with home life.

Anyway! Progress!

I failed at my first attempt of soldering the Blue Tooth Module to the BOB. I think when I bridged a test point underneath the module and tried to remove it from the board I damaged the module. So I took my last remaining OUYA controller that I really didn't want to take apart and popped the module off. Also instead of using hot air to mount the pins, I just used my iron and soldered one at a time. Looks pretty clean, not as clean as it should be though. I'll be getting into using paste and stencils once I get my PNP machine going.
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This was my first pairing test to see if I could connect. It didn't on the first try, so I checked all the pins again and found one that wasn't connected to the BOB. Hit it with the iron and it paired right up!
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This is after the first pair and of course the system had to do an update that took forever! What you don't see here though is I was able to hook up the LED's behind the OUYA logo to the controller board so that when the controller is paired, the lights turn on. This was a cool way to see if the controller is paired or not since I don't have the original LED's that were on the controller.
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All that's left now is to hook up the control sticks, mount a few more parts on the inside, do some insulation and enjoy! I'm excited for this on!
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Hey guys, check out my new website and project showcase!
Also this is where my Case Making Guide can be found!
Downing
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Re: Downing's OUYA Portable

Post by Downing »

So just shy of a month in the making, I'd like to present to you my first portable in over two years! Thanks a bunch to RDC and Hailrazer for their contributions to this project as well!

No fancy name or anything like that, Just Downing's OUYA Portable!

Specs:

Custom 3D Printed/CNC Cut Casing
Custom PCBs for Controller Buttons and Screen Controls
2 - 3.7v, 5000mAh Batteries (4-5 hours of play time)
1 - 7" 780p HDMI Display
2 - Stereo 25mm Speakers
2 - PS3 Analog control sticks with custom PCB boards
Standard 8-Gig OUYA Game Console with USB Port for Expanded Memory or Side Loading
Custom Controller Break Out Board for Analog to Digital Trigger Presses.

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https://www.youtube.com/watch?v=qqpPk4cO8Q8

For a full build log and more info on how this was made, check out the build log!
http://www.bacman.co.uk/bacforum/viewto ... 3&start=70
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Hey guys, check out my new website and project showcase!
Also this is where my Case Making Guide can be found!
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8bit
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Re: Downing's OUYA Portable: COMEPLETED! Last Post Update

Post by 8bit »

Congrats. It is really awesome to see this project completed. My only question is are the back triggers and shoulder buttons actually comfortable to use? I would have thought that if they were positioned closer to how the wii u has them setup it would have been more ideal. Were there were some technical constraints for doing something like that?
"The librarian does not rue the library, nor the curator fear the exhibits. Rather they revel in their potential. And that is the beauty of a big backlog; pure potential." - Exhuminator

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Sano
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Re: Downing's OUYA Portable: COMEPLETED! Last Post Update

Post by Sano »

That is an epic mod man! I give you 50 out of 5 stars! :mrgreen:
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Downing
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Re: Downing's OUYA Portable: COMEPLETED! Last Post Update

Post by Downing »

8bit wrote:Congrats. It is really awesome to see this project completed. My only question is are the back triggers and shoulder buttons actually comfortable to use? I would have thought that if they were positioned closer to how the wii u has them setup it would have been more ideal. Were there were some technical constraints for doing something like that?


It's very comfortable. It fits like a glove and works well with the system as a whole. The Wii U is a completely different style and layout, even though there are a few similarities. But basing how the controls "look" like they feel is like watching a music video with the sound muted and saying the song sucked.

You have to hold it to understand and that's really where the disconnect is with this because people are going to just have to take my word, so the question is going to be asked over and over again.
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Hey guys, check out my new website and project showcase!
Also this is where my Case Making Guide can be found!
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bacteria
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Re: Downing's OUYA Portable: COMEPLETED! Last Post Update

Post by bacteria »

A good project and well made indeed.

It got onto Hack-A-Day today too!
I am the Bacman
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